Neapolitan pizza is the original pizza; it is the classical pizza from which all others are derived, originating in Naples, which is also considered to be the first place in Italy that tomatoes were ever added with regularity to dishes. There are several things which define a Neapolitan, though, aside from geographicorigin -- these involve the cooking method and ingredients.

Most registered association members are, of course, in Italy. However, there are a few in the US and other countries as well -- although Bertucci's is the only restaurant chain in the US who is a member of the VPN.